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Title: Cocured damped layers in composite structure

A study was made on the feasibility of laminating and cocuring graphite fiber-epoxy prepreg with plies of commercially available damping materials for form beams and hat-stiffened panels. Experiments showed that cocuring did not adversely affect the damping materials and that excellent structural damping properties could be obtained. The construction of the hat-stiffened panels proved that complex parts containing damping materials could be fabricated. Dynamic testing of these components showed that internal architectural features could be designed to promote damping in primary structure.
Authors:
 [1] ;  [2]
  1. (Brigham Young Univ., Provo, UT (United States))
  2. (Naval Air Development Center, Warminster, PA (United States))
Publication Date:
OSTI Identifier:
5415457
Resource Type:
Journal Article
Resource Relation:
Journal Name: SAMPE Quarterly (Society of Aerospace Material and Process Engineers); (United States); Journal Volume: 23:2
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBON FIBERS; CURING; COMPOSITE MATERIALS; DAMPING; FABRICATION; EPOXIDES; AEROSPACE INDUSTRY; BENDING; BUILDING MATERIALS; EXPERIMENTAL DATA; FLEXURAL STRENGTH; FREQUENCY RESPONSE TESTING; GRAPHITE; MATERIALS TESTING; MECHANICAL STRUCTURES; PHOTOGRAPHY; SAMPLE PREPARATION; SHEAR PROPERTIES; CARBON; DATA; DEFORMATION; ELEMENTAL MINERALS; ELEMENTS; FIBERS; INDUSTRY; INFORMATION; MATERIALS; MECHANICAL PROPERTIES; MINERALS; NONMETALS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; TESTING 360601* -- Other Materials-- Preparation & Manufacture; 360606 -- Other Materials-- Physical Properties-- (1992-)